Boyhood is a remarkably straightforward/homogenized/cliche tale of growing up for a particular group of people at a particular time. I am not one to habitually complain about cultural representation in movies, particularly when such an idea may be completely irrelevant to the (proposed) central themes of most films. However, when you have a movie whose entire purpose is to accurately portray reality, that goes to exceptional lengths to do so over many years of filming, only to completely exist in an unusually sterile and vapid bubble, you have a boring and clueless movie. The same applies to its embarrassing, endless lecturing and philosophizing.
It is quite a feat to have created a movie filmed over 12 years where the only character who undergoes a modicum of change is the Father.
Spend the 3 hours watching home videos with your family instead.